ROCHESTER, Minn. — Jeff Bolton, Mayo Clinic’s chief administrative officer, has announced his plans to retire on Nov. 30. He has been Mayo Clinic’s chief administrative officer since 2013 and a member of the Mayo Clinic Board of Trustees since 2011. He joined Mayo Clinic in 2002 as its chief financial officer.”I am truly grateful to Jeff for his dedication and service during his 19 years in leadership roles at Mayo Clinic,” says Gianrico Farrugia,…